As of 05:30 PST

Weather in Duwamish, WA

45°

Duwamish, Monday, 9 November, 05:30

Partly cloudy. Feels like 44°. High 57°, low 45°.

Pressure30.00 inHg

Wind3.4 mph E

Humidity89%

Visibility6.2 mi

Dew point42°

See detailed hourly forecast

Monthly outlook for Duwamish, WA: average high 53.2°, average low 43.7°. That is 2.6° above the climate normal for November. Precipitation is expected on 8 days (about 1.9 inches), against a normal of 10 days and 4.1 inches. The warmest day looks like 11 November (66.6°), the coolest 22 November (35.3°).

53.2°/43.7°

Average high / low

+2.6°

Above normal

8 / 10

Wet days / normal

1.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 November – 18 November	56°	49.6°	+3.5°
19 November – 28 November	48.5°	46.1°	+1.3°
29 November – 8 December	at normal	44.3°	—

November records over 66 years

65.8°2 November 1962All-time high

0.5°23 November 1985All-time low

Climate normals and records are computed from the nearest reference point — Riverton (1 mi).

Tue, 1060° / 52°

0.69

60 °

Duwamish, Tuesday, 10 November

Rain. High 60°, low 52°.

Pressure30.03 inHg

Wind8.2 mph SE

Humidity93%

Visibility1.9 mi

Dew point52°

Wed, 1167° / 52°

0.04

67 °

Duwamish, Wednesday, 11 November

Light rain. High 67°, low 52°.

Pressure29.94 inHg

Wind8.6 mph S

Humidity62%

Visibility6.2 mi

Dew point53°

Thu, 1259° / 49°

59 °

Duwamish, Thursday, 12 November

Overcast. High 59°, low 49°.

Pressure29.71 inHg

Wind2.7 mph SW

Humidity78%

Visibility6.2 mi

Dew point51°

Fri, 1357° / 53°

0.19

57 °

Duwamish, Friday, 13 November

Rain. High 57°, low 53°.

Pressure29.32 inHg

Wind13.5 mph S

Humidity89%

Visibility—

Dew point50°

Sat, 1457° / 50°

0.28

57 °

Duwamish, Saturday, 14 November

Rain. High 57°, low 50°.

Pressure29.65 inHg

Wind15.5 mph S

Humidity85%

Visibility—

Dew point47°

Sun, 1552° / 47°

0.19

52 °

Duwamish, Sunday, 15 November

Rain. High 52°, low 47°.

Pressure29.62 inHg

Wind16.6 mph S

Humidity73%

Visibility—

Dew point42°

Mon, 1651° / 45°

0.06

51 °

Duwamish, Monday, 16 November

Light rain. High 51°, low 45°.

Pressure30.06 inHg

Wind7.3 mph S

Humidity82%

Visibility—

Dew point42°

Tue, 1751° / 43°

51 °

Duwamish, Tuesday, 17 November

Overcast. High 51°, low 43°.

Pressure30.39 inHg

Wind4.6 mph N

Humidity73%

Visibility—

Dew point39°

Wed, 1850° / 38°

50 °

Duwamish, Wednesday, 18 November

Clear. High 50°, low 38°.

Pressure30.24 inHg

Wind4.7 mph N

Humidity62%

Visibility—

Dew point31°

Thu, 1949° / 39°

49 °

Duwamish, Thursday, 19 November

Overcast. High 49°, low 39°.

Pressure30.15 inHg

Wind5 mph N

Humidity52%

Visibility—

Dew point26°

Fri, 2047° / 36°

47 °

Duwamish, Friday, 20 November

Clear. High 47°, low 36°.

Pressure30.21 inHg

Wind2.2 mph S

Humidity62%

Visibility—

Dew point29°

Sat, 2148° / 36°

48 °

Duwamish, Saturday, 21 November

Clear. High 48°, low 36°.

Pressure30.21 inHg

Wind4.7 mph N

Humidity53%

Visibility—

Dew point25°

Sun, 2248° / 35°

48 °

Duwamish, Sunday, 22 November

Clear. High 48°, low 35°.

Pressure30.12 inHg

Wind3.1 mph N

Humidity52%

Visibility—

Dew point24°

Mon, 2350° / 36°

50 °

Duwamish, Monday, 23 November

Clear. High 50°, low 36°.

Pressure29.94 inHg

Wind4 mph N

Humidity48%

Visibility—

Dew point24°

Tue, 2450° / 42°

0.05

50 °

Duwamish, Tuesday, 24 November

Light rain. High 50°, low 42°.

Pressure29.56 inHg

Wind5.6 mph N

Humidity59%

Visibility—

Dew point32°

From day 17 onward the outlook is built from 60-year climate statistics

Wed, 2546° / 37°

0.35

46 °

Duwamish, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high46°

Average low37°

Average precipitation0.35 in

Chance of precipitation63%

Record high55° (1977)

Record low11° (1985)

Thu, 2646° / 37°

0.22

46 °

Duwamish, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high46°

Average low37°

Average precipitation0.22 in

Chance of precipitation57%

Record high57° (2014)

Record low20° (1985)

Fri, 2746° / 37°

0.28

46 °

Duwamish, Friday, 27 November

Climate normal for this date — 60-year average.

Average high46°

Average low37°

Average precipitation0.28 in

Chance of precipitation67%

Record high55° (2014)

Record low21° (1985)

Sat, 2845° / 36°

0.2

45 °

Duwamish, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high45°

Average low36°

Average precipitation0.2 in

Chance of precipitation58%

Record high57° (2021)

Record low17° (1985)

Sun, 2945° / 35°

0.21

45 °

Duwamish, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high45°

Average low35°

Average precipitation0.21 in

Chance of precipitation52%

Record high56° (2021)

Record low8° (1985)

Mon, 3045° / 36°

0.24

45 °

Duwamish, Monday, 30 November

Climate normal for this date — 60-year average.

Average high45°

Average low36°

Average precipitation0.24 in

Chance of precipitation63%

Record high56° (2008)

Record low9° (1985)

Tue, 0145° / 37°

0.25

45 °

Duwamish, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high45°

Average low37°

Average precipitation0.25 in

Chance of precipitation62%

Record high55° (2021)

Record low6° (1985)

Wed, 0245° / 36°

0.31

45 °

Duwamish, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high45°

Average low36°

Average precipitation0.31 in

Chance of precipitation68%

Record high54° (2021)

Record low20° (1985)

Thu, 0345° / 36°

0.31

45 °

Duwamish, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high45°

Average low36°

Average precipitation0.31 in

Chance of precipitation57%

Record high56° (1965)

Record low26° (1984)

Fri, 0444° / 35°

0.27

44 °

Duwamish, Friday, 4 December

Climate normal for this date — 60-year average.

Average high44°

Average low35°

Average precipitation0.27 in

Chance of precipitation55%

Record high57° (2023)

Record low17° (1970)

Sat, 0543° / 35°

0.19

43 °

Duwamish, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high43°

Average low35°

Average precipitation0.19 in

Chance of precipitation47%

Record high59° (2023)

Record low23° (1994)

Sun, 0644° / 35°

0.19

44 °

Duwamish, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high44°

Average low35°

Average precipitation0.19 in

Chance of precipitation53%

Record high55° (2019)

Record low24° (1972)

Mon, 0743° / 35°

0.19

43 °

Duwamish, Monday, 7 December

Climate normal for this date — 60-year average.

Average high43°

Average low35°

Average precipitation0.19 in

Chance of precipitation55%

Record high55° (2025)

Record low17° (1972)

Tue, 0844° / 35°

0.23

44 °

Duwamish, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high44°

Average low35°

Average precipitation0.23 in

Chance of precipitation53%

Record high56° (2025)

Record low14° (1972)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Duwamish, WA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Duwamish, WA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.